A4 Sedan V6-2.8L (AFC) (1996)
Air Injection Pump Relay: Testing and Inspection
SECONDARY AIR INJECTION (AIR) PUMP RELAY, CHECKING:
Requirements:
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Fuel pump relay OK.
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Fuses for secondary air injection pump relay OK.
NOTE: The relay for the secondary air injection pump is located in the relay station in the right-front footwell.
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Switch ignition off.
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Remove covering for lower right A-pillar.
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Pull back carpet in right-front footwell.
Checking voltage supply for secondary air injection pump relay:
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Remove secondary air injection pump relay from relay panel position 5.
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Connect VAG 1527B voltage tester between relay panel socket 2 and Ground (GND).
The voltage tester LED must light up.
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Connect VAG 15278 voltage tester between relay panel socket 6 and Ground (GND), then operate starter briefly.
Voltage tester LED must light up.
If LED does not light up:
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Eliminate break in wiring using wiring diagram.
Checking triggering for secondary air injection pump relay: